Soot boiler-cleaner.



L. J. BAYER.

SOOT BOILER CLEANER.

APPLICATION FILED MARJZ, 1914.

Patented Nov. 3, 1914.

2 SHEETS-SHEET 1.

\"VE.7VTOI|, Leo Jain? Bayer- L. J. BAYER.

s 00T BOILER CLEANER. APPLICATION FILED MABJQ, 1914. 1 1' 1 5 ,486; Patented Nov. 3, 1914.

2 SHEETSSHEET 2.

""ITZYESSES:

Leo r/bim Bayer-- ATTORNE' Y.

To all whom it may concern:

UNITED STATES PA ENT. onn os.

. oo'r BOIL'Eit-CLE N Specification in Letters serene Application 'filed Hatch 12, L914. Seria1No. 824,279.

Patented Nov. 3, 1914.

Be it lmown' that I, LEO JOHN BAYER, citizen of the United States, residing at St.

Louis, State of Missouri, have invented certain new and useful Improvements in Soot Boiler'ECleaners, of which the following is a full, clear, and exact description,

reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in soot boiler-c1eaners;*and it consists upperdeflecting wall or baflie, the other, half being removed to. expose beneath it the in the novel details of construction more fully set forth in the specificationand pointed out in the claims. -1

In the drawings, Figure :1 jisa combined section and side elevation -o;a' .-conventional I water-tube boiler of the,Heinetfypefshow ing my invention itpplied; thereto, the parts in section being inzthe plane of-the section .line 1-1 of Fig 8; Fig.2 is a horizontal section on the line 2- 2 of Fig. '1 o f onehalf of the boiler immediately above. the

halzt of the-lower portion of the boiler immediately above the lower deflecting wall or baflle Fig. 3 is a front elevation of theboiler with-my invention applied thereto;

- and Fig. '4 is a perspective (broken away) 5' headers detached,

of the nozzleinstallation leading from the 'lhe'present invention: is an extension of the construction forming the subject-matter of ill. S. Letters Patent Number 1,032,583,

datedJuly 16, 1912, issued to me for soot bciler cleaners, and has for its object the eliminationjof the blower installation on the rear-of the boiler, whereby a single blower,and' that'confined to the front of ,the boiler, will serve the purpose of cleaning r 'the' boiler and removing the objectionable soot,.-and other accumulations which deposit over the heating surfaces exposed to the products of combustion. By. dispensing with the rear blower, the cost of installation and operation is materially reduced,

iboiler 'shel-l ha ing terminal water-legs L, L, connected by circulating water-tubes T. Exteuclingfover'thefire-box B, and above the bridge-wall W, and a suitable distance overthe rear combustion chamber C, and

disposed at the bottoni of the water-tubes T, 1s a deflectingwallor horizontal bafiie a, said bafiie. terminating sons to leave an opening or pass 0, between it and the rear water-leg as well understood in the art. Disposed'at the top of the water-tube section {of thefboilerand extending from the rear water-leg forward a suitable distance so as to leave a pass 0', between it and the front water-leg, is a; second baflie' or deflecting wa l b. Leading from a steam supply pipe 1, at the front end of the boiler, and disposed.- across substantially the center of the front water-leg is a branch 'onheader 2 provided with a conventional control'jvalve V at its uncture withthe pipe 1 said headerbeing provided on opposite sides with a see ri'es of branchesor distributing pipes "3, 3,

the alternate" members of the seriesterminating at'the topin longgblowingftubes t, and

at the bottomin'long blowing tubes t, and

at intermediate points in nozzles Tn, the several-tubes and nozzles being inserted through the hollow stay-bolted of; the water-leg as well understood'in the jart.', -Lead ing lilgewise fronrthe steam supply-pipe l isa bent .pipe P which terminates in a; header :2 in

substantial alinement with the header 2', said header 2' being likewise provided with distributing pipes 8, 3, wl iichiterminate alternately in'top'and bottoin-long blowing pipes t t, and with intermediate nozzlesn.

The branches 3 which alternate with cor responding branches carryingLthe long ter-v minal tubes t t, are provided ,mth terminal nozzles n, the .header Q carrying interme diate nozzles n. The branches .3 alternating with corresponding branches carrying the long terminal tubes- .5 t,- are provided.

with terminal and intermediateinozzlesin, the nozzles n ,n'of theseveralibranches' being 01: a length to ju'stf pass through the stay-bolts 4," 'andtnerminating substantially flush with the inni wall of the water leg;-

As best seen in Fig. 4, a portion of the branches 3, carry four blowing members If, n, n, t; a portion of the branchesB, carry four blowing members n, n, n, n; an- 110 i with the header 2 carry three blowingmem-l other portion of. the branches 3 togetherbers a, n; n, -and another portion of the branches 3' together with the header 2 carry three blowing members t n .6. With this method of distribution the nozzles n '71. of each header 2, 2 are disposed in distinct horizontal planes, the distribution of the nozzles when viewed from the front of the boiler (Fig. 3) being.diamond shaped as indicated by the dotted diamond figures (Z in said Fig. 3. At its juncture with the pipe 1, the pipe P is provided with a conventional control valve V. The stack is indicated by the dotted showing D.

In a boiler baffled horizontally as here indicated, there are,as well understood in the art, three main and distinct zones of recipitation of soot and other material carried by the gases discharged from the combustion-chamber) apart from what is deposited directly on the tubes T. These zones are indicated by r, r and 1", being located subs'tantially and respectively at the rear end of the bottom baflle, at the front end of said baflie against the front water-leg, and at the rear end of the upper bafile against the rear water-leg. As shown by the arrows in Fig. 1, the line of draft is from the fire-box B- rearward over the combustion chamber 0, through the passage 0, thence forward be tween the tubes T toward the passage 0', thence rearward between the shell S and upper bafl'le Z) toward the stack D. In the operation of my blower this draft line is not materially disturbed so that whatever soot and fiy ash accumulating on the heating surfacesand bafiles, is dislodged by the steam jets issuing from the tubes 15, t, and nozzles a n, will be carried by the draft to the stack D, and through the latter into the atmosphere. i

As clearly obvious from'the drawings, the upper row of tubes 25 and nozzles a discharge their jets in the general direction of the draft (rearwardly above the top bafiie b), the bottom tubes t and nozzles 10/, and the intermediate nozzles n n dischar ing between the baffles (a 'b) rearwardly but against or in opposition to the general line or direction of draft. The jets which thus oppose the draft being in the majority, it becomes necessary in the operation ofl'the cleaner, to first blow one side and then? the other, in order that one-half of the space between the baffles may serve as a conduit through which the draft may freely operate in proper direction (toward the openingo") to carry the soot and ash dislodged by thejets operating in the adjacent half .of said space, toward the opening or pass 0, after which the natural draft will carry the prod ucts through the space between the shell S and upperbaflie b to the stack D.

From the foregoing, the operation of the. blower will be readily stantially as follows: It will be seen thatthe headers 2, 2', are controlled by separate understood and is sub 'valves V, V, to permit the headers to be operated independently. To blow or clean the boiler we can assume that the valve V is closed and the valve V open. Under these circumstances, the upper row of tubes t and nozzles a leading from the branches or distributers 3 attached to,the header 2 will discharge over the top bailie b in the general direction of the line of draft,the intermediate nozzles n n and bottom tubes t discharging substantially against the draft, the operations of the several tubes and nozzles specified, being confined substantially to onehalf of the boiler, the blower devices controlled from the valve V being shut off. This permits the draft to operate without interruption through the half of the boiler not being blown (as quite obvious from an inspect-ion of Figs. 3 and l). The tubes 2?, t,

may be considered as nozzle-extensions or extension nozzles (the conventional nozzle n, n, terminating at the inner wall of the water-leg L), the extensions 23 discharging at points in proximity to the precipitation zone 7"", and the extensions t discharging in the legion of the zone 1', the zone 7' bein takencare of .by the nozzles n, n at the bottoms of the branches 3 3'. The jets issuing'from the extensions 23 expanding-as they do more or less after leaving the dischargeends of the extensions, will discharge in a measure toward the half or side of the boiler not being blown, and thus induce a more rapid flow of the combustion products through said half toward the pass 0'. At the same time,

'the discharges from the tubes or extensions 22. will induce an energetic flow of the products toward and into the stack D; and the .soot

and fiy-ash dislodged by the impact of the jets against the water tubes and bottom battle on the side being blown will be taken up by the increased draft traversing thehalf y same manner, the material dislodged by the jets being carried off to the stack through the half of the boiler not beingblown. The installation here shown, and confined to one end of the boiler (there being no blower at the rear), must necessarily be made of at least two independently operable sections,

one section, composed of the header 2 with its nozzles, being blown to operate upon one half of the boiler, andthe other section, composed of the header 2 withits nozzles, be-

ing. blown. to operate on the adjacent half of the boiler, it being of course immaterial which half is blown first. To operate both sections at one time would not be permissible as in that event the draft would be choked off, and the backing and banking of the fire would result. 1 V

amass f'lhe'functionserved by the'tiibes t is to dlslodge the accumulations in 'the region of the'zoner' and cause them to mingle' with the draft traversin the side ofthe"boi:ler' not being'blownyt e "fL'1ncti0n'-of-'the tubes 5' is to agitate the accumulationsin the z'onerf, and bring them into the current 615 the boi'ler sectionnoti being blown, so as'to-be ejected through the stack- D. The soot dislodged from the tubes and bafiies by the nozzles n, n;

v is naturally scattered and forced into the current on its way to the stack, so that by first blowing one half or-secticnof the boiler and then the other with the single front in-' stallation as here shown, eminently good re- :sults may'be' obtained. Besidespby confining the installation to one end (the front) the cost of the blower, and operating expenses y are materially reduced. The noztles (t n n t) in the presentform of blower are distributed over substantiall the entire, or at least the major ortion of the tube area of the water-1e t atis to say, the area defined or c ered y, the ends of thewater tubes; and

wade not every hollow stay-bolt is fitted or provided'with a blower nozzle, the number so provided issuficient for the purpose in view. As "well understood in the art, staybolts not-equipped with nozzles are plugged up to prevent air beingdra'wn into the spaces between the tubesflT. Features shown but not alluded to are well known in the art and description thereof is here unnecessary.

'. Having described my invention, what I claim is:

51. In combination with a-boiler having a 7 water-tube section comprising circulating water-tubes communicatin said tubes being provide with a bottom honizontal baflie terminating at the rear a suitable distance from the adjacent ends of the tubes, and with an upper bafile terminating in the front a suitable distance from the "ad'acent ends of the, tubes, a furnace projvi ed with a fire-box and a combustion chamber beneath thebottom ballie a front blower provided with a series oi nozzles disposed over the major portion of the area defined by the tube terminals and dischargin rearwardly between the baflies, and suitab le extension nozzles discharging rearwardly above the bottom bafile'in the region of initial precipitation of suspended im urities' carried by the gases discharged rom the combustion chamber.

2. In combination with a boiler having a water-tube section comprising circulating r water-tubes communicating with the boiler,

- said tubes 'beingprovided with a lower horizontal baflie terminating at the rear a suitable distance from the adjacent ends of the tubes, and with a second bafile superposed over the'first bafiie and terminating 1n the front a suitable distance from the adjacent ends of the tubes, a furnace provided with a with the boiler,

fire box *and combustion chamber beneath the iowerbliiile," a iir'oht' blower comprising two #iiidepend ently operable sections 'and provlded wfith a. series of noz zles' disposed over the major porti'on of'the area defined by the tubete'rminals' and discharging iear- -"wardly between the-baliles, and suitableex tension nozzles dischargin'g rearvrardly' above the "lower bit'file, in "the region" of "the zone :--ef'initia1 a'pre'cipitation of shependdimpuritieS carried by the gases "dis ehargeerrem the combustion chamber.

31in combination with a -boiler' havinga *Tl aliel tllbe" section comprising circulating "water. tubes communicating with the boiler,

n-said tubes iasing provided with, aiflower hori-zontal bafiie terminating at the rear a suitable distance from the adjacent ends of the tubes, and with a second bafile superposed over the first baffle and terminating in" the front a suitable distance from the adjacent ends of the tubes, a

furnace provided with a fire-box and combustion chamber beneath the lowerbaflie, a

front blower comprising two independently operable sections and provided with a series of nozzles disposed over the major portion of the area defined by the tube terminals, and

discharging rearwardly between the bafiies and above the upper bafiie, and suitable extension nozzles discharging 'rearwardly above the lower baflle, in the region of the zone of initial precipitation of suspended impurities carried by the gases discharged from the combustion chamber.

4. In combination with a boiler having a water-tube section comprising circulating Water-tubes communicatlng with the boiler,

said tubes being providedwith a lower hori zontal bafiie terminating at the rear a suitable distance from the adjacent ends of the tubes, and witha second bafile superposed over the first bafile and terminating mthe front a suitable distance from the adjacent ends of the tubes, a furnace provided witha fire-box and combustion chamber beneath the lower battle, a front blower comprising two independently operable sections and 'pro- 1 vided with a series of nozzles disposed overthe major portion of the area defined by the between the baflies and above the upper baille, and suitable extension nozzles discharging tube terminals, and discharging rearwardly rearwardly above the lower and upper bafbafile extending from the rear water leg to a I cent end of the upper baffle and over the up- 15 point removed a suitable distance from the l per bafile and terminating to discharge in front water-leg, a front blower comprising independently operable sections provided with nozzles passing through the front Water-leg and distributed over the major portion of the tube area of said leg, said. nozzles discharging rearwardly, a portion of the nozzles being extended above the lower baffie and discharging in the region of the zone of initial precipitation of suspended impurities on said bathe, another portion of of the nozzles being extended across the space between the front Water-leg and adjathe region of the zone of precipitation of suspended impurities on said upper baffle, and means for conducting the dislodged soot and other material to a point outside the boiler-furnace.

In testimony whereof I aflix my signature, in presence of two Witnesses.

LEO JNO. BAYER. Witnesses:

EMIL STAREK,

A. W. POWELL 

